Gas producer or generator.



A. J. RIGKIE.

GAS PRODUCER 0R GENERATOR.

APPLICATION FILED JULY 28, 1911.

1,029,084. Patented June 11, 1912.

I, d 1' lb WIT/VESJES; A/VE VTOR NITED STATES P {IENT QFFICE.

ALEXANDER JOHN RICKIE, OF COSSIPUR, CALCUTTA, INDIA.

GAS PRODUCER OR GENERATOR.

To all whom it may concern;

7 Be it known that I, ALEXANDER JOHN RICHIE, a subject of the King of England, residing at Cossipur, Calcutta, India, have invented certain new and useful Improvements in or Connected with Gas Producers or Generators, of which the following is a specification.

This invention has reference to gas pro ducers or generators of the kind in which solid fuel, and more particularly bituminous coal or fuel, is converted into gas, by forcing air and steam, or air through it-the fuel; the air and steam, or air, being preferably introduced into the fuel at the bottom of the producer or generator, where it is in a state of incai'idescence and is converted to the gaseous form; while the volatile or hydrocarbon gases are driven off by the heat with in the generator, at the upper part of the producer.

he object of the present invention is primarily to provide improvements in connection with such gas producers or generators, by which the gas generated is of improved character, and the tar or tarry matters are prevented from passing to the coolers, washers, or scrubbers or other part of the plant used in connection with the producer.

In the following description the improvements under this invention are described, and in the accompanying drawing they are illustrated, and they will be described in connection with these drawings, Figure 1 of which shows the apparatus in sectional ele vation, and F ig. 2 in sectional plan.

In a gas producer or generator of the kind herein referred to, there is employed within the generator, a retort or fixing chamher, into which the gas generated is taken from the hottest part or zone of the fuel; and it is passed through this retort or fixing ehamberwhich will be subjected to the greatest heat existing in the producerand carried from it to a cooler, washer or scruboer, or place of use. By this means, all possibility of tar passing to either the washers, scrubbers, or engine or other apparatus, is eliminated.

Referring now to the drawing, a represents the internal brick wall of the producer or generator; I) is the outer metal casing; c is the trapped fuel supply hopper; (Z is the conduit or twyer for introducing the air and steam, for burning the fuel into gaseous Specification of Letters Patent.

Application filed July 28, 1911.

Patented June 11 1912 Serial No. 640,982.

form and e is the water seal or pit at the bottom of the generator. All these parts are known and commonly employed.

The retort or fixing chamber through which the gas made is passed, is generally designated 2', and is preferably made of fire clay, fire brick, or of other suitable material. It is of annular form, as shown, consisting of two walls, with perforated, spiral, or equivalent diaphragms j between them; and the gas is introduced at the lower part of the retort, and passes through it in zigzag, spiral, or to and fro, or other manner, as the case may be, from below, to the upper part; whence it is carried away from the producer by a pipe is. The retort i is car ried at its lower edge, and rests on cantaliver or projecting brick work supports Z, of which there are four shown in the drawings, projecting out from the wall a; and it--the retort stands in the hottest part of the generator or producer. The outer wall of the retort 2' stands some distance away from, that is, within, the interior surface of the wall a; and the internal way or space through the retort, is of large diameter as shown. Thus the fuel introduced into the producer from the hopper 0, can pass through the interior aperture in the retort, and also outside it; and the retort will therefore be enveloped by the fuel, and the part of it which is at or near its highest temperature. The fuel will rest on ashes and clinker in the pit or seal a in the usual way; and the air and steam will be forced into the bed of fuel through the t-wyer (Z in the usual way.

The retort 2', as stated, rests by its lower edge on the four points of the projections Z; and the gas enters the annular space within the retort through one or more inlets from below, at one or more points between these supports or rests; and passing up through ways in itthe retort, is subjected to a species of secondary distilling or fixing action, so that by the time it passes away from the retort through the pipe is, the heavy gases are fixed or brought to such a condition that tar or tarry matters are prevented from passing away from the producer or generator to the washers, scrubbers, or other part.

The retort is made in two parts, namely a lower part with the divisions or diaphragms 7'; while the upper part, which is of inverted U form, provided with a discharge orifice, with which is connected the discharge pipe 10; and its lower edge rests in a socket on the upper edge of the outer wall of the lower part of the retort.

In the producer or generator, there may be three or more injectors and pipes 0, for injecting gases drawn off from the upper portion of the producer, to the lower and incandescent part of the fuel, through which they will have to pass.

The usual stoking hole plugs 2) will be used on the top of the producer; and a pipe and cock 1 will also be used at the upper part of the producer, for carrying oif gases for raising steam in the boiler used in connection with the supply of steam to the producer, or other desired purposes.

What is claimed is:

1. A gas generator having a wall inclosing the fuel; an annular retort fixing chamber having a diaphragm therein, and an inlet and a discharge orifice; and supports attached to the generator wall which support the chamber with the inlet in the hottest zone of the fuel.

2. A gas generator for the fuel; a retort fixing chamber for all the gases, comprising upper and lower parts, the lower part comprising two annular walls with a spiral diaphragm and inlets at the lower end, and the upper part an annular inverted U shaped member having a discharge orifice; and cantaliver supports in the generator for the chamber with the inlets thereto in the incandescent zone of the fuel.

3. A producer gas generator, comprising a fuel chamber, and an annular fixing chamber disposed in the fuel and having inner and outer surfaces in contact with the fuel, and the entrance to the chamber in the hottest zone of the fuel.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALEXANDER JOHN RICKIE.

Witnesses:

WILLIAM JOHN BRADSHAW, HARRY ROGERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

